<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <SCript>
        let arr = [9, 4, 8, 3, 7, 2, 6, 1, 5, 0]
        for (let i = 0; i < arr.length; i++) {
            for (let j = 0; j < arr.length - i - 1; j++) {
                if (arr[j] > arr[j + 1]) {
                    let temp = arr[j]
                    arr[j] = arr[j + 1]
                    arr[j + 1] = temp
                }
            }
        }
        console.log(arr);
        
        //  箭头函数
       const arrs=(arr) => {
            for (let i = 0; i < arr.length; i++) {
                for (let j = 0; j < arr.length - i - 1; j++) {
                    if (arr[j] > arr[j + 1]) {
                        let temp = arr[j]
                        arr[j] = arr[j + 1]
                        arr[j + 1] = temp
                    }
                }
            }
            return arr;
        }
       console.log(arrs([9, 4, 8, 3, 7, 2, 6, 1, 5, 0])); 
    </SCript>
</body>

</html>